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<a name="1" href="#1">1</a>   <em class="jxr_comment">/*</em>
<a name="2" href="#2">2</a>   <em class="jxr_comment"> * $Id: ProcessFilesTask.html 93 2010-04-26 01:47:14Z samaxes $</em>
<a name="3" href="#3">3</a>   <em class="jxr_comment"> *</em>
<a name="4" href="#4">4</a>   <em class="jxr_comment"> * MinifyMojo Maven Plugin</em>
<a name="5" href="#5">5</a>   <em class="jxr_comment"> * <a href="http://code.google.com/p/maven-samaxes-plugin/" target="alexandria_uri">http://code.google.com/p/maven-samaxes-plugin/</a></em>
<a name="6" href="#6">6</a>   <em class="jxr_comment"> *</em>
<a name="7" href="#7">7</a>   <em class="jxr_comment"> * Copyright (c) 2009 samaxes.com</em>
<a name="8" href="#8">8</a>   <em class="jxr_comment"> * </em>
<a name="9" href="#9">9</a>   <em class="jxr_comment"> * Licensed under the Apache License, Version 2.0 (the "License");</em>
<a name="10" href="#10">10</a>  <em class="jxr_comment"> * you may not use this file except in compliance with the License.</em>
<a name="11" href="#11">11</a>  <em class="jxr_comment"> * You may obtain a copy of the License at</em>
<a name="12" href="#12">12</a>  <em class="jxr_comment"> * </em>
<a name="13" href="#13">13</a>  <em class="jxr_comment"> *      <a href="http://www.apache.org/licenses/LICENSE-2.0" target="alexandria_uri">http://www.apache.org/licenses/LICENSE-2.0</a></em>
<a name="14" href="#14">14</a>  <em class="jxr_comment"> * </em>
<a name="15" href="#15">15</a>  <em class="jxr_comment"> * Unless required by applicable law or agreed to in writing, software</em>
<a name="16" href="#16">16</a>  <em class="jxr_comment"> * distributed under the License is distributed on an "AS IS" BASIS,</em>
<a name="17" href="#17">17</a>  <em class="jxr_comment"> * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.</em>
<a name="18" href="#18">18</a>  <em class="jxr_comment"> * See the License for the specific language governing permissions and</em>
<a name="19" href="#19">19</a>  <em class="jxr_comment"> * limitations under the License.</em>
<a name="20" href="#20">20</a>  <em class="jxr_comment"> */</em>
<a name="21" href="#21">21</a>  <strong class="jxr_keyword">package</strong> com.samaxes.maven.plugin.minify;
<a name="22" href="#22">22</a>  
<a name="23" href="#23">23</a>  <strong class="jxr_keyword">import</strong> java.io.File;
<a name="24" href="#24">24</a>  <strong class="jxr_keyword">import</strong> java.io.FileOutputStream;
<a name="25" href="#25">25</a>  <strong class="jxr_keyword">import</strong> java.io.IOException;
<a name="26" href="#26">26</a>  <strong class="jxr_keyword">import</strong> java.io.OutputStream;
<a name="27" href="#27">27</a>  <strong class="jxr_keyword">import</strong> java.io.SequenceInputStream;
<a name="28" href="#28">28</a>  <strong class="jxr_keyword">import</strong> java.util.ArrayList;
<a name="29" href="#29">29</a>  <strong class="jxr_keyword">import</strong> java.util.List;
<a name="30" href="#30">30</a>  
<a name="31" href="#31">31</a>  <strong class="jxr_keyword">import</strong> org.apache.maven.plugin.logging.Log;
<a name="32" href="#32">32</a>  <strong class="jxr_keyword">import</strong> org.codehaus.plexus.util.DirectoryScanner;
<a name="33" href="#33">33</a>  <strong class="jxr_keyword">import</strong> org.codehaus.plexus.util.StringUtils;
<a name="34" href="#34">34</a>  
<a name="35" href="#35">35</a>  <strong class="jxr_keyword">import</strong> com.samaxes.maven.plugin.common.ListOfFiles;
<a name="36" href="#36">36</a>  
<a name="37" href="#37">37</a>  <em class="jxr_javadoccomment">/**</em>
<a name="38" href="#38">38</a>  <em class="jxr_javadoccomment"> * Abstract class for merging and compressing a files list.</em>
<a name="39" href="#39">39</a>  <em class="jxr_javadoccomment"> */</em>
<a name="40" href="#40">40</a>  <strong class="jxr_keyword">public</strong> <strong class="jxr_keyword">abstract</strong> <strong class="jxr_keyword">class</strong> <a href="../../../../../com/samaxes/maven/plugin/minify/ProcessFilesTask.html">ProcessFilesTask</a> implements Runnable {
<a name="41" href="#41">41</a>  
<a name="42" href="#42">42</a>      <strong class="jxr_keyword">protected</strong> <strong class="jxr_keyword">static</strong> <strong class="jxr_keyword">final</strong> String SUFFIX = <span class="jxr_string">".min"</span>;
<a name="43" href="#43">43</a>  
<a name="44" href="#44">44</a>      <strong class="jxr_keyword">private</strong> <strong class="jxr_keyword">static</strong> <strong class="jxr_keyword">final</strong> String[] EMPTY_STRING_ARRAY = {};
<a name="45" href="#45">45</a>  
<a name="46" href="#46">46</a>      <strong class="jxr_keyword">protected</strong> Log log;
<a name="47" href="#47">47</a>  
<a name="48" href="#48">48</a>      <strong class="jxr_keyword">protected</strong> File targetDir;
<a name="49" href="#49">49</a>  
<a name="50" href="#50">50</a>      <strong class="jxr_keyword">protected</strong> File finalFile;
<a name="51" href="#51">51</a>  
<a name="52" href="#52">52</a>      <strong class="jxr_keyword">protected</strong> <strong class="jxr_keyword">int</strong> linebreak;
<a name="53" href="#53">53</a>  
<a name="54" href="#54">54</a>      <strong class="jxr_keyword">private</strong> Integer bufferSize;
<a name="55" href="#55">55</a>  
<a name="56" href="#56">56</a>      <strong class="jxr_keyword">private</strong> File sourceDir;
<a name="57" href="#57">57</a>  
<a name="58" href="#58">58</a>      <strong class="jxr_keyword">private</strong> List&lt;File&gt; files = <strong class="jxr_keyword">new</strong> ArrayList&lt;File&gt;();
<a name="59" href="#59">59</a>  
<a name="60" href="#60">60</a>      <em class="jxr_javadoccomment">/**</em>
<a name="61" href="#61">61</a>  <em class="jxr_javadoccomment">     * Task constructor.</em>
<a name="62" href="#62">62</a>  <em class="jxr_javadoccomment">     * </em>
<a name="63" href="#63">63</a>  <em class="jxr_javadoccomment">     * @param log Maven plugin log</em>
<a name="64" href="#64">64</a>  <em class="jxr_javadoccomment">     * @param bufferSize size of the buffer used to read source files.</em>
<a name="65" href="#65">65</a>  <em class="jxr_javadoccomment">     * @param webappSourceDir web resources source directory</em>
<a name="66" href="#66">66</a>  <em class="jxr_javadoccomment">     * @param webappTargetDir web resources target directory</em>
<a name="67" href="#67">67</a>  <em class="jxr_javadoccomment">     * @param filesDir directory containing input files</em>
<a name="68" href="#68">68</a>  <em class="jxr_javadoccomment">     * @param filenames filenames list</em>
<a name="69" href="#69">69</a>  <em class="jxr_javadoccomment">     * @param sourceIncludes comma separated list of source files to include</em>
<a name="70" href="#70">70</a>  <em class="jxr_javadoccomment">     * @param sourceExcludes comma separated list of source files to exclude</em>
<a name="71" href="#71">71</a>  <em class="jxr_javadoccomment">     * @param finalFilename final filename</em>
<a name="72" href="#72">72</a>  <em class="jxr_javadoccomment">     * @param linebreak split long lines after a specific column</em>
<a name="73" href="#73">73</a>  <em class="jxr_javadoccomment">     */</em>
<a name="74" href="#74">74</a>      <strong class="jxr_keyword">public</strong> <a href="../../../../../com/samaxes/maven/plugin/minify/ProcessFilesTask.html">ProcessFilesTask</a>(Log log, Integer bufferSize, String webappSourceDir, String webappTargetDir,
<a name="75" href="#75">75</a>              String filesDir, List&lt;String&gt; filenames, String sourceIncludes, String sourceExcludes,
<a name="76" href="#76">76</a>              String finalFilename, <strong class="jxr_keyword">int</strong> linebreak) {
<a name="77" href="#77">77</a>          <strong class="jxr_keyword">this</strong>.log = log;
<a name="78" href="#78">78</a>          <strong class="jxr_keyword">this</strong>.bufferSize = bufferSize;
<a name="79" href="#79">79</a>          <strong class="jxr_keyword">this</strong>.linebreak = linebreak;
<a name="80" href="#80">80</a>          <strong class="jxr_keyword">this</strong>.sourceDir = <strong class="jxr_keyword">new</strong> File(webappSourceDir.concat(File.separator).concat(filesDir));
<a name="81" href="#81">81</a>          <strong class="jxr_keyword">this</strong>.targetDir = <strong class="jxr_keyword">new</strong> File(webappTargetDir.concat(File.separator).concat(filesDir));
<a name="82" href="#82">82</a>  
<a name="83" href="#83">83</a>          List&lt;File&gt; includedFiles = (sourceIncludes != <strong class="jxr_keyword">null</strong> &amp;&amp; !<span class="jxr_string">""</span>.equals(sourceIncludes)) ? getFilesToInclude(
<a name="84" href="#84">84</a>                  sourceDir, sourceIncludes, sourceExcludes) : <strong class="jxr_keyword">new</strong> ArrayList&lt;File&gt;();
<a name="85" href="#85">85</a>          <strong class="jxr_keyword">for</strong> (String filename : filenames) {
<a name="86" href="#86">86</a>              File sourceFile = <strong class="jxr_keyword">new</strong> File(sourceDir, filename);
<a name="87" href="#87">87</a>              log.debug(<span class="jxr_string">"Adding source file ["</span> + sourceFile.getName() + <span class="jxr_string">"]"</span>);
<a name="88" href="#88">88</a>              files.add(sourceFile);
<a name="89" href="#89">89</a>          }
<a name="90" href="#90">90</a>          <strong class="jxr_keyword">for</strong> (File includedFile : includedFiles) {
<a name="91" href="#91">91</a>              <strong class="jxr_keyword">if</strong> (!files.contains(includedFile)) {
<a name="92" href="#92">92</a>                  log.debug(<span class="jxr_string">"Adding source file ["</span> + includedFile.getName() + <span class="jxr_string">"]"</span>);
<a name="93" href="#93">93</a>                  files.add(includedFile);
<a name="94" href="#94">94</a>              }
<a name="95" href="#95">95</a>          }
<a name="96" href="#96">96</a>  
<a name="97" href="#97">97</a>          <strong class="jxr_keyword">if</strong> (targetDir.exists() || targetDir.mkdirs()) {
<a name="98" href="#98">98</a>              <strong class="jxr_keyword">this</strong>.finalFile = <strong class="jxr_keyword">new</strong> File(targetDir, finalFilename);
<a name="99" href="#99">99</a>          }
<a name="100" href="#100">100</a>     }
<a name="101" href="#101">101</a> 
<a name="102" href="#102">102</a>     <em class="jxr_javadoccomment">/**</em>
<a name="103" href="#103">103</a> <em class="jxr_javadoccomment">     * Method executed by the thread.</em>
<a name="104" href="#104">104</a> <em class="jxr_javadoccomment">     */</em>
<a name="105" href="#105">105</a>     <strong class="jxr_keyword">public</strong> <strong class="jxr_keyword">void</strong> run() {
<a name="106" href="#106">106</a>         mergeFiles();
<a name="107" href="#107">107</a>         minify();
<a name="108" href="#108">108</a>     }
<a name="109" href="#109">109</a> 
<a name="110" href="#110">110</a>     <em class="jxr_javadoccomment">/**</em>
<a name="111" href="#111">111</a> <em class="jxr_javadoccomment">     * Returns a string array of the includes to be used when adding source files.</em>
<a name="112" href="#112">112</a> <em class="jxr_javadoccomment">     * </em>
<a name="113" href="#113">113</a> <em class="jxr_javadoccomment">     * @param include comma separated list of source files to include</em>
<a name="114" href="#114">114</a> <em class="jxr_javadoccomment">     * @return an array of tokens to include</em>
<a name="115" href="#115">115</a> <em class="jxr_javadoccomment">     */</em>
<a name="116" href="#116">116</a>     <strong class="jxr_keyword">private</strong> String[] getIncludes(String include) {
<a name="117" href="#117">117</a>         <strong class="jxr_keyword">return</strong> StringUtils.split(StringUtils.defaultString(include), <span class="jxr_string">","</span>);
<a name="118" href="#118">118</a>     }
<a name="119" href="#119">119</a> 
<a name="120" href="#120">120</a>     <em class="jxr_javadoccomment">/**</em>
<a name="121" href="#121">121</a> <em class="jxr_javadoccomment">     * Returns a string array of the excludes to be used when adding source files.</em>
<a name="122" href="#122">122</a> <em class="jxr_javadoccomment">     * </em>
<a name="123" href="#123">123</a> <em class="jxr_javadoccomment">     * @param exclude comma separated list of source files to exclude</em>
<a name="124" href="#124">124</a> <em class="jxr_javadoccomment">     * @return an array of tokens to exclude</em>
<a name="125" href="#125">125</a> <em class="jxr_javadoccomment">     */</em>
<a name="126" href="#126">126</a>     <strong class="jxr_keyword">private</strong> String[] getExcludes(String exclude) {
<a name="127" href="#127">127</a>         <strong class="jxr_keyword">return</strong> (StringUtils.isNotEmpty(exclude)) ? StringUtils.split(exclude, <span class="jxr_string">","</span>) : EMPTY_STRING_ARRAY;
<a name="128" href="#128">128</a>     }
<a name="129" href="#129">129</a> 
<a name="130" href="#130">130</a>     <em class="jxr_javadoccomment">/**</em>
<a name="131" href="#131">131</a> <em class="jxr_javadoccomment">     * Returns the files to copy. Even if the excludes are &lt;code&gt;null&lt;/code&gt;, the default excludes are used.</em>
<a name="132" href="#132">132</a> <em class="jxr_javadoccomment">     * </em>
<a name="133" href="#133">133</a> <em class="jxr_javadoccomment">     * @param baseDir the base directory to start from</em>
<a name="134" href="#134">134</a> <em class="jxr_javadoccomment">     * @param include comma separated list of source files to include</em>
<a name="135" href="#135">135</a> <em class="jxr_javadoccomment">     * @param exclude comma separated list of source files to exclude</em>
<a name="136" href="#136">136</a> <em class="jxr_javadoccomment">     * @return the files to copy</em>
<a name="137" href="#137">137</a> <em class="jxr_javadoccomment">     */</em>
<a name="138" href="#138">138</a>     <strong class="jxr_keyword">private</strong> List&lt;File&gt; getFilesToInclude(File baseDir, String include, String exclude) {
<a name="139" href="#139">139</a>         DirectoryScanner scanner = <strong class="jxr_keyword">new</strong> DirectoryScanner();
<a name="140" href="#140">140</a>         List&lt;File&gt; includedFiles = <strong class="jxr_keyword">new</strong> ArrayList&lt;File&gt;();
<a name="141" href="#141">141</a>         String[] includedFilenames;
<a name="142" href="#142">142</a>         String[] includes = getIncludes(include);
<a name="143" href="#143">143</a>         String[] excludes = getExcludes(exclude);
<a name="144" href="#144">144</a> 
<a name="145" href="#145">145</a>         scanner.setBasedir(baseDir);
<a name="146" href="#146">146</a> 
<a name="147" href="#147">147</a>         <strong class="jxr_keyword">if</strong> (excludes != <strong class="jxr_keyword">null</strong>) {
<a name="148" href="#148">148</a>             scanner.setExcludes(excludes);
<a name="149" href="#149">149</a>         }
<a name="150" href="#150">150</a>         scanner.addDefaultExcludes();
<a name="151" href="#151">151</a> 
<a name="152" href="#152">152</a>         <strong class="jxr_keyword">if</strong> (includes != <strong class="jxr_keyword">null</strong> &amp;&amp; includes.length &gt; 0) {
<a name="153" href="#153">153</a>             scanner.setIncludes(includes);
<a name="154" href="#154">154</a>         }
<a name="155" href="#155">155</a> 
<a name="156" href="#156">156</a>         scanner.scan();
<a name="157" href="#157">157</a>         includedFilenames = scanner.getIncludedFiles();
<a name="158" href="#158">158</a> 
<a name="159" href="#159">159</a>         <strong class="jxr_keyword">for</strong> (String includedFilename : includedFilenames) {
<a name="160" href="#160">160</a>             includedFiles.add(<strong class="jxr_keyword">new</strong> File(baseDir, includedFilename));
<a name="161" href="#161">161</a>         }
<a name="162" href="#162">162</a> 
<a name="163" href="#163">163</a>         <strong class="jxr_keyword">return</strong> includedFiles;
<a name="164" href="#164">164</a>     }
<a name="165" href="#165">165</a> 
<a name="166" href="#166">166</a>     <em class="jxr_javadoccomment">/**</em>
<a name="167" href="#167">167</a> <em class="jxr_javadoccomment">     * Merges files list.</em>
<a name="168" href="#168">168</a> <em class="jxr_javadoccomment">     */</em>
<a name="169" href="#169">169</a>     <strong class="jxr_keyword">private</strong> <strong class="jxr_keyword">void</strong> mergeFiles() {
<a name="170" href="#170">170</a>         <a href="../../../../../com/samaxes/maven/plugin/common/ListOfFiles.html">ListOfFiles</a> listOfFiles = <strong class="jxr_keyword">new</strong> <a href="../../../../../com/samaxes/maven/plugin/common/ListOfFiles.html">ListOfFiles</a>(<strong class="jxr_keyword">this</strong>.log, files);
<a name="171" href="#171">171</a> 
<a name="172" href="#172">172</a>         log.info(<span class="jxr_string">"Merging files "</span> + listOfFiles.toString());
<a name="173" href="#173">173</a>         <strong class="jxr_keyword">if</strong> (listOfFiles.size() &gt; 0) {
<a name="174" href="#174">174</a>             <strong class="jxr_keyword">try</strong> {
<a name="175" href="#175">175</a>                 SequenceInputStream sequence = <strong class="jxr_keyword">new</strong> SequenceInputStream(listOfFiles);
<a name="176" href="#176">176</a>                 OutputStream out = <strong class="jxr_keyword">new</strong> FileOutputStream(finalFile);
<a name="177" href="#177">177</a>                 byte[] buffer = <strong class="jxr_keyword">new</strong> byte[bufferSize];
<a name="178" href="#178">178</a>                 <strong class="jxr_keyword">int</strong> length;
<a name="179" href="#179">179</a>                 <strong class="jxr_keyword">while</strong> ((length = sequence.read(buffer)) &gt; 0) {
<a name="180" href="#180">180</a>                     out.write(buffer, 0, length);
<a name="181" href="#181">181</a>                 }
<a name="182" href="#182">182</a> 
<a name="183" href="#183">183</a>                 sequence.close();
<a name="184" href="#184">184</a>                 out.close();
<a name="185" href="#185">185</a>             } <strong class="jxr_keyword">catch</strong> (IOException e) {
<a name="186" href="#186">186</a>                 log.error(<span class="jxr_string">"An error has occurred while concatenating files."</span>, e);
<a name="187" href="#187">187</a>             }
<a name="188" href="#188">188</a>         }
<a name="189" href="#189">189</a>     }
<a name="190" href="#190">190</a> 
<a name="191" href="#191">191</a>     <em class="jxr_javadoccomment">/**</em>
<a name="192" href="#192">192</a> <em class="jxr_javadoccomment">     * Minifies source file.</em>
<a name="193" href="#193">193</a> <em class="jxr_javadoccomment">     */</em>
<a name="194" href="#194">194</a>     <strong class="jxr_keyword">abstract</strong> <strong class="jxr_keyword">void</strong> minify();
<a name="195" href="#195">195</a> }
</pre>
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